# CVE-2022-4324: Custom Field Template < 2.5.8 - Admin+ PHP Object Injection

> A high-privilege user importing a malicious file can trigger PHP object injection, potentially leading to code execution if a gadget chain exists.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Jan 2023
- **Updated:** 10 Apr 2025
- **Also known as:** GHSA-482p-fj3c-xcw8

## What is CVE-2022-4324?

CVE-2022-4324 is a high-severity unsafe deserialization vulnerability in Unknown Custom Field Template, published on 2 Jan 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Custom Field Template WordPress plugin before 2.5.8 unserialises the content of an imported file, which could lead to PHP object injections issues when a high privilege user import (intentionally or not) a malicious Customizer Styling file and a suitable gadget chain is present on the blog.

## Which versions are affected by CVE-2022-4324?

It affects 1 product.


Products: Wpgogo Custom Field Template.

## How do I fix CVE-2022-4324?

No fix has been published for CVE-2022-4324 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4324 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4324 exists.

## Other vulnerabilities in Unknown Custom Field Template

- [CVE-2023-38392](https://insights.sbomify.com/CVE-2023-38392/): WordPress Custom Field Template Plugin <= 2.5.9 is vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2024-44062](https://insights.sbomify.com/CVE-2024-44062/): WordPress Custom Field Template plugin <= 2.6.5 - Cross Site Scripting (XSS) vulnerability (medium 6.5)
- [CVE-2023-6745](https://insights.sbomify.com/CVE-2023-6745/): Custom Field Template <= 2.6.1 - Authenticated(Contributor+) Stored Cross-Site Scripting via shortcode (medium 6.4)
- [CVE-2024-0627](https://insights.sbomify.com/CVE-2024-0627/): Custom Field Template <= 2.6.1 - Authenticated(Constibutor+) Stored Cross-Site Scripting via Custom Field Name (medium 6.4)
- [CVE-2024-0653](https://insights.sbomify.com/CVE-2024-0653/): Custom Field Template <= 2.6.1 - Authenticated (Admin+) Stored Cross-Site Scritping (medium 4.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4324 and fix it if it is affected.

What it is: CVE-2022-4324 is a high-severity unsafe deserialization vulnerability in Unknown Custom Field Template, published on 2 Jan 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4324 exists.

Affected product: Unknown Custom Field Template. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-4324/ (Markdown: https://insights.sbomify.com/CVE-2022-4324/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4324
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4324
- OSV: https://osv.dev/vulnerability/CVE-2022-4324

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4324/
Summaries are generated and may contain mistakes; the official description above is the record.